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Green phosphating anti-corrosion treatment liquid suitable for steel surface as well as preparation method and application of green phosphating anti-corrosion treatment liquid

A technology of anti-corrosion treatment and steel surface, applied in the direction of metal material coating process, etc., can solve the problem that the effect cannot meet the quality requirements, and achieve the effect of reducing sandblasting and rust removal operations, simple production process and promoting chemical reaction

Pending Publication Date: 2022-03-25
GUANGZHOU YUEHUI METAL MACHINERY PROTECTION TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a green phosphating anticorrosion treatment liquid suitable for steel surface and its preparation method and application, to solve the problem of using multifunctional surface phosphating anticorrosion treatment process materials in the prior art before coating the surface of steel structural parts The problem that the effect cannot meet the quality requirements

Method used

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  • Green phosphating anti-corrosion treatment liquid suitable for steel surface as well as preparation method and application of green phosphating anti-corrosion treatment liquid
  • Green phosphating anti-corrosion treatment liquid suitable for steel surface as well as preparation method and application of green phosphating anti-corrosion treatment liquid
  • Green phosphating anti-corrosion treatment liquid suitable for steel surface as well as preparation method and application of green phosphating anti-corrosion treatment liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A green phosphating anticorrosion treatment solution suitable for steel surfaces, consisting of the following components by weight percentage:

[0039]

[0040] In weight percentage, the composite preservative is composed of the following raw materials: 60% water, 30% triethanolamine, 5% ammonium molybdate, 5% sodium molybdate;

[0041] The raw materials of the composite preservative are mixed, heated and stirred at 70-80° C. until the materials are completely dissolved and transparent, and the composite preservative is obtained.

[0042] In terms of weight percentage, the phosphating film converting agent is composed of the following raw materials: 66.67% phosphoric acid, 13% zinc dihydrogen phosphate, 11% zinc phosphate, 6% iron manganese phosphate, 3.33% zinc oxide;

[0043] The raw materials of the phosphating film converting agent are mixed, heated and stirred at 55-65° C. until the materials are completely dissolved and transparent, and the phosphating film con...

Embodiment 2

[0056] A green phosphating anticorrosion treatment solution suitable for steel surfaces, consisting of the following components by weight percentage:

[0057]

[0058] The raw materials and preparation of each component in this embodiment and the preparation and application of the antiseptic treatment solution refer to Example 1.

Embodiment 3

[0060] A green phosphating anticorrosion treatment solution suitable for steel surfaces, consisting of the following components by weight percentage:

[0061]

[0062] The raw materials and preparation of each component in this embodiment and the preparation and application of the antiseptic treatment solution refer to Example 1.

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Abstract

The invention discloses a green phosphating preservative treatment liquid suitable for a steel surface as well as a preparation method and application of the green phosphating preservative treatment liquid. The green phosphating preservative treatment liquid comprises the following components: a compound preservative, a phosphating film transforming agent, a complexing agent, magnesium chloride, an emulsifier, a penetrant, ethanol and pure water. The invention has the following advantages: the components can generate a correlative synergistic effect, a firm protective film taking ferric phosphate as a main body can be formed on an interface, and the compact thin molecular film is insoluble in water, high in hardness and good in adhesive force, and can better promote chemical reaction and improve chemical properties under the action of metal and an oxidizing medium; the dissolving dispersity of the green phosphating anti-corrosion treatment liquid can be remarkably improved, the good binding force between the steel surface and a coating and the anti-corrosion and anti-corrosion effect are enhanced, and use is safe and convenient.

Description

technical field [0001] The invention relates to the technical field of steel structure material surface protection, in particular to anti-corrosion surface treatment technology. Background technique [0002] Metal corrosion is a phenomenon in which metal materials undergo chemical or electrochemical reactions with oxygen, moisture and other surrounding media in the atmosphere under the influence of certain environmental conditions (such as temperature and humidity) and are corroded and damaged. Usually refers to the corrosion of metal materials, and its corrosion products are called rust. The direct and indirect economic losses and harms caused by the corrosion of metal materials are enormous. [0003] The pre-painting process of steel structural parts is a very important work content for corrosion protection and surface technology. Coating and pre-painting anti-corrosion technology is a commonly used anti-corrosion technology for steel structural parts, and one of the key...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/07C23F11/08
CPCC23C22/07C23F11/08
Inventor 李荣福肖文伟王冠李诗菁
Owner GUANGZHOU YUEHUI METAL MACHINERY PROTECTION TECH
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